The Siemens Mobile Panel 177 (WinCC flexible) is a human-machine interface (HMI) device designed for industrial automation applications. It offers a mobile and flexible solution for operating and monitoring systems, with various configurations to suit different operational needs.
Function Description
The Mobile Panel 177 serves as a mobile HMI device, allowing operators to interact with and monitor industrial processes. It can be used for stationary operation when placed in a wall holder. The device is available in three main configurations:
- With enabling switches: Provides basic safety functionality.
- With enabling switches and STOP button: Adds an emergency stop function for enhanced safety.
- With enabling switches, STOP button, handwheel, key-operated switch, and illuminated pushbutton: Offers a comprehensive set of control elements for complex operations.
The device connects to a terminal box via a quick-connect plug connector and an industrial-grade connecting cable, which is resistant to many solvents and lubricants and designed for high flexural strength. The terminal box acts as an interface for power supply, safety functions, and process connections to a PLC or other control systems.
Key operational features include:
- Touch screen and membrane keyboard: The primary input method is the color STN-LC display with a touch screen. Additionally, there is a membrane keyboard with function keys (F1 to F8 with LEDs, and F9 to F14 without LEDs).
- Enable switch: A 3-stage, 2-circuit switch located on both sides of the panel. It has three settings: Neutral position (OFF), Enable (ON), and Panic (OFF). This switch is crucial for safety-related functions, ensuring that the operator is actively holding the device. The signals from the enable switch are fed to the terminal box and can be interconnected to a safety circuit for power interruption in manual special operating modes.
- STOP button (optional): A 2-circuit button designed for safety-related stops. When pressed, it engages in the stop position and opens the stop circuit. It can be used for quick process stops or to trigger an emergency stop function in a monitored system. Releasing the STOP button requires a clockwise turn.
- Handwheel (optional): An incremental input device that can be turned without a stop or zero position. It is used to input incremental values and its status can be evaluated as a direct button or via WinCC flexible system functions.
- Key-operated switch (optional): Used to lock functions that are triggered by the Mobile Panel 177 in an active project. It has three positions: central (0), turned clockwise (I), and turned counterclockwise (II).
- Illuminated pushbutton (optional): Provides rapid digital inputs, with its status evaluated as a direct button or via WinCC flexible system functions. The LED state can be controlled by the PLC.
- Connection point recognition: The terminal box can be assigned a unique box ID, which the HMI device can read and transmit to the controller. This allows for zone-specific safety functions and the display of different system screens depending on the connected terminal box.
Important Technical Specifications
HMI Device:
- Weight without packaging: Approx. 1.3 kg
- Display type: Color-STN LCD
- Display area, active: 115 mm x 86 mm (5.7")
- Resolution: 320 x 240 pixels
- Colors, displayable: 256 colors
- Back-lighting: CCFL, with a typical half brightness life time of 50,000 hours.
- Input unit: Touch screen (analog, resistive), membrane keyboard (14 softkeys), enable switch (2-circuit, 3-stage), optional STOP button (2-circuit), optional handwheel, optional key-operated switch (3 switch settings), optional illuminated pushbutton.
- Power supply (HMI device): 24 V DC, ensured by safe separation of extra-low voltage from dangerous contact voltages. The supply circuit must be protected against short circuits with a 3.15 A fuse.
- Enable switch supply voltage: 24 V DC, max. 400 mA, min. 10 mA.
- STOP button supply voltage: 24 V DC, max. 500 mA, min. 10 mA (normally closed contacts).
- Application memory: 2048 KB.
- Fall height: Max. 1.5 m.
Terminal Box (DP and PN variants):
- Weight without packaging: DP approx. 500 g, PN approx. 700 g.
- Nominal voltage: +24 V DC.
- Permissible range: 20.4 V to 28.8 V (-15%, +20%).
- Transients, maximum permissible: 35 V (500 msec).
- Time between two transients, minimum: 50 s.
- Current consumption (without panel): Typical 100 mA, max. 150 mA.
- Current consumption (with panel): Typical 350 mA, max. 450 mA.
- Power on current surge I²t: Approx. 0.5 A²s.
- Fuse protection: Internal (electronic).
- Current load PLC-accompanying signals: Max. 100 mA.
- Terminal block for power supply: Designed for cables with a maximum cross-section of 1.5 mm².
- Protection class: IP65 (when Mobile Panel 177 or dummy cap is plugged in).
- Interfaces (DP variant): Fast connector (PROFIBUS), terminal strip 1 (RS 232, RS 422, RS 485, power supply), terminal strip 2 (safety functions for STOP button and enable switch, additional control system functions), rotary encoder switch for box ID, socket for connecting cable.
- Interfaces (PN variant): Fast connector (PROFINET), terminal strip 1 (supply voltage), terminal strip 2 (safety functions for STOP button and enable switch, additional control system functions), rotary encoder switch for box ID, socket for connecting cable.
- LED displays (PN variant): Six LEDs (green "LNK", yellow "ACT") for communication status of PROFINET connections (Port1, Port2) and Mobile Panel 177.
Usage Features
- Mobile operation: The device's primary advantage is its mobility, allowing operators to move freely around the system while maintaining control and monitoring capabilities.
- Stationary operation: Can be securely mounted in a wall holder for fixed-point operation.
- Safety functions: Integrated enable switches and an optional STOP button provide critical safety features, meeting EN 954 Category 3 requirements with external monitoring devices.
- Flexible configurations: Multiple variants of the HMI device and terminal boxes (Basic and Plus) cater to diverse application requirements, from basic control to complex safety-critical operations.
- Zone-specific control: The box ID feature allows for dividing a system into functional zones, enabling specific safety functions and screen displays based on the connected terminal box.
- Industrial robustness: The connecting cable and terminal box are designed for industrial environments, resistant to solvents and lubricants, and offer IP65 protection.
- Ergonomic design: The STOP button is equally accessible to left- and right-handed individuals and is fall-protected. The handwheel has a recess for easier operation.
- Compatibility: The Mobile Panel 177 DP can be operated on a terminal box for the Mobile Panel 170, though some new features like box ID may not be available.
Maintenance Features
- Easy access for connections: The terminal compartment on the Mobile Panel 177 and the terminal box cover can be opened for wiring and maintenance.
- Screws designed to prevent loss: The screws for the Mobile Panel 177 cover are designed to remain attached to the cover when loosened, preventing loss.
- Protection class maintenance: Ensure unused cable entry holes in the terminal box are fitted with rubber seals and the unused outlet in the Mobile Panel is plugged to maintain IP65 protection.
- ESD guidelines: Observe ESD instructions when working with opened housings to prevent damage to electrical circuits.
- Permissible torque: Specific torque values (0.4 to 0.5 Nm) are provided for tightening screws on plastic housings to prevent damage.
- Recovery time: A waiting period of approximately one second is recommended after disconnecting the connecting cable from the terminal box before plugging it back in. After power failures lasting less than one second, the connecting cable must be disconnected.
- Cleanliness: Maintain cleanliness when the terminal compartment is open to prevent foreign bodies or liquids from damaging the printed circuit board.
- DIL switch settings: Diagrams for DIL switch settings for interface configuration are provided inside the terminal box cover.
To Next Page
Need help?
General
